:root{
    --min-width: 1000px;
}
html, body{
    margin: 0;
    padding: 0;
    min-width: var(--min-width);
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.center{
    text-align: center;
}

/* header */
.header{
    height: 70px;
    background-color: #b1b0b0;
}
.container{
    width: 80%;
    margin: 0 auto;
    min-width: var(--min-width);
    height: 100%;
}
.header .container .logo{
    width: 400px;
    height: 100%;
    line-height: 100px;
}
.header .container .text{
    width: 400px;
    font-size: 24px;
    font-weight: bold;
    line-height: 70px;
}
.header .container .text a{
    display: inline-block;
    width: 100px;
    height: 50px;
}


/* banner */
.banner{
    width: 100%;
    height: 300px;
    background-image: url("../img/banner01.jpg");
    background-size: 100% 100%;
    position: relative;
}
.banner p{
    margin: 0 auto;
    color: white;
    font-size: 32px;
    width: 50%;
    text-align: center;
    position: absolute;
    left: 25%;
}
.banner p:nth-of-type(1){
    font-size: 40px;
    font-weight: bold;
    top: 20%;
}
.banner p:nth-of-type(2){
    bottom: 20%;
}
/* form */
.form{
    height: 500px;
}
.form table{
    margin: 50px auto;
    font-size: 18px;
}
.form input, .form select{
    width: 180px;
    font-size: 18px;
    box-sizing: content-box;
}
.s_btn{
    height: 35px;
    border-radius: 10px;
    background-color: #4b4bf3;
    font-size: 20px;
    color: white;
    border: 0;
    width: 180px;
}

.s_btn:nth-of-type(2){
    width: 230px;
}

/* footer */
footer{
    width: 100%;
    height: 70px;
    background-color: rgba(0,0,0, .8);
    color: white;
    line-height: 70px;
    /*position: absolute;*/
    /*bottom: 0px;*/
}
footer .text{
    position: absolute;
    left: 25%;
}
footer .code{
    position: absolute;
    right: 25%;
    width: 70px;
    height: 70px;
}
